mosaic-client/dev.catbit.mosaic.client.ui.sdui.foundation.system_broadcast/SystemBroadcastChannel

SystemBroadcastChannel

App-wide pub/sub channel — the mechanism behind BroadcastToSystem and SystemBroadcastListener's OnSystemBroadcast(broadcastId) trigger. A single Koin single instance backs the whole app, so a value published from any screen's event chain reaches every SystemBroadcastListener mounted anywhere, on any screen — unlike dev.catbit.mosaic.client.ui.sdui.foundation.screen_tiles_broadcast.ScreenTilesBroadcastChannel, which is scoped to one screen. Backed by a MutableSharedFlow with no replay, so a subscriber only sees values published after it started collecting — nothing sent before it existed.

Constructors

constructor()

Properties

channel

val channel: SharedFlow<SystemBroadcastData>

Read-only view of the channel — collected via observeSystemBroadcastChannel (extensions/SharedFlowExtensions.kt) or directly.

Functions

broadcast

suspend fun broadcast(broadcastId: String, data: AnySerializable)

Publishes data under broadcastId to every current subscriber — the mechanism behind BroadcastToSystem. Suspends until every current collector has received the value (plain SharedFlow.emit semantics); a broadcast with no active subscribers is simply dropped, not queued.